"crappy as ur other Zerg stuff,http://warcraft3.filefront.com/file/Starcraft_15_3D_Conversion_Maps;72786 for all official models,skins,and icons from Starcraft"
First off, they're not "crappy." The skins are not incredible, yes, but at least he teamcoloured them, which makes them a ton better. It's a pretty solid model, and the animations could be good, which isn't something you can say for alot of custom models.
There are no "official" SC models, it just happens killst4r made a ton of very nice models that fit together very well (they all are the same style, have the same build animations and use some similar skins)
And finally, if this was a "crappy" model, why not suggest how to fix it?
I think it's pretty good, the skins could be a little better, but that's it really.